JPH04148077A - Ion current detecting device - Google Patents
Ion current detecting deviceInfo
- Publication number
- JPH04148077A JPH04148077A JP2272109A JP27210990A JPH04148077A JP H04148077 A JPH04148077 A JP H04148077A JP 2272109 A JP2272109 A JP 2272109A JP 27210990 A JP27210990 A JP 27210990A JP H04148077 A JPH04148077 A JP H04148077A
- Authority
- JP
- Japan
- Prior art keywords
- ion current
- voltage
- resistor
- current detection
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 abstract description 52
- 238000002485 combustion reaction Methods 0.000 abstract description 20
- 239000003990 capacitor Substances 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
- F02P2017/125—Measuring ionisation of combustion gas, e.g. by using ignition circuits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、イオン電流検出装置に関し、特に内燃機関
用点火装置等に用いて好適なイオン電流検出装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ion current detection device, and more particularly to an ion current detection device suitable for use in an ignition device for an internal combustion engine.
［従来の技術］
第２図は従来のイオン電流検出装置を含む内燃機関用点
火装置を示す構成図である０図において、（１）は点火
コイル、（２）はこの点火コイル（１）に駆動信号を供
給するスイッチング素子としてのパワートランジスタ、
（３）はこのパワートランジスタ（２）のベースに接続
された点火時期制御用等のコンピュータユニット、（４
）はカソードが点火コイル（１）の１次側に接続された
逆流防止用ダイオード、（５）はダイオード（４）のア
ノードに接続された点火プラグ、（６）はエンジン燃焼
室、（７）はエンジン、（８）はエンジン（７）の回転
角を検出するシグナルジェネレータ、（９）は内燃機関
の燃焼状態を検出するイオン電流検出ユニット、（１０
）はこのイオン電流検出ユニット（９）内に設けられた
検出信号処理部、（１１）はこの検−比信号処理部（１
０）の前段に設けられ、イオン電流に対応した電圧と基
準電圧を比較する比較器であって、検出信号処理部（１
０）と比較器（１１）とは信号処理手段を構成する。（
１２）、（１３）は基準電圧を形成するための抵抗器、
（１４）はバイアス電圧を発生する負の直流電源、（１
５）はこの直流電源（１４）に直列接続され、検出され
たイオン電流を電圧信号に変換する変換手段としての抵
抗器、（１６）はイオン電流検出用ダイオード、（１７
）はイオン電流径路、（１８）は点火プラグ（５）に設
けられたイオン電流検出用電極、（１９）はイオン電流
検出ユニット（９）によるイオン電流検出信号、（２０
）は点火コイル（１）の２次側に得られる点火用高電圧
（負電圧）である、尚、比較器（１１）の他方の入力端
に印加される基準電圧■、は電源電圧をＶ （！ 、接
続点Ｂの電圧をＶｌ、抵抗器く１２）、（１３）の抵抗
値をそれぞれＲ１、Ｒ１とすれば次式で与えられる。[Prior Art] Fig. 2 is a configuration diagram showing an ignition system for an internal combustion engine including a conventional ion current detection device. A power transistor as a switching element that supplies a drive signal,
(3) is a computer unit for ignition timing control etc. connected to the base of this power transistor (2);
) is a backflow prevention diode whose cathode is connected to the primary side of the ignition coil (1), (5) is a spark plug connected to the anode of diode (4), (6) is the engine combustion chamber, (7) is an engine, (8) is a signal generator that detects the rotation angle of the engine (7), (9) is an ion current detection unit that detects the combustion state of the internal combustion engine, and (10) is a signal generator that detects the rotation angle of the engine (7).
) is a detection signal processing section provided in this ion current detection unit (9), and (11) is a detection signal processing section (11) provided in this detection ratio signal processing section (11).
The comparator is provided before the detection signal processing unit (1) and compares the voltage corresponding to the ion current with the reference voltage.
0) and the comparator (11) constitute a signal processing means. (
12) and (13) are resistors for forming a reference voltage,
(14) is a negative DC power supply that generates a bias voltage, (1
5) is a resistor connected in series with this DC power supply (14) and serves as a conversion means for converting the detected ion current into a voltage signal; (16) is a diode for detecting ion current; (17)
) is the ion current path, (18) is the ion current detection electrode provided on the spark plug (5), (19) is the ion current detection signal from the ion current detection unit (9), (20
) is the high voltage for ignition (negative voltage) obtained on the secondary side of the ignition coil (1).The reference voltage ■, applied to the other input terminal of the comparator (11) is the power supply voltage V (!, the voltage at the connection point B is Vl, and the resistance values of resistor 12) and (13) are R1 and R1, respectively, then it is given by the following equation.
Ｖ＋＝Ｖｏ＋ （Ｖ、、−ＶＪ ・Ｒｚ／ （Ｒ＋＋Ｒ
ａ）次に、第２（！Ｉに示した従来のイオン電流検出装
置を含む内燃機関用点火装置の動作について説明する０
点火時期にコンピュータユニット（３）より発生された
信号によりパワートランジスタ（２）は点火コイル（１
）を駆動するスイッチとして働く、このとき点火コイル
（１）には負の高電圧（（２０）が発生し、ダイオード
（４）を介して点火プラグ（５）に供給されてエンジン
燃焼室（６）内の混合気に着火される。このとき高電圧
（２０）は負であるのでイオン電流検出ユニット（９）
に影響は与えない、燃焼時にエンジン燃焼室（６）内で
イオンが発生すると、直流電源（１４）にて負電圧にバ
イアスしているのでイオン電流径路（１７）を通してイ
オン電流がイオン電流検出ユニット（９）に流れ、抵抗
器（１５）の両端に電圧が生じる。この電圧は比較器（
１１）の一方の入力端に供給され、基準電圧Ｖ１と比較
される。そして抵抗器（１５）に発生した電圧即ち接続
点Ａの電圧ｖ２がＶ２＞Ｖｌになると、比較器（１１）
より信号が出力され、検出信号処理部（１０）で処理さ
れてイオン電流検出信号（１９）としてコンピュータユ
ニット（３）に伝送される。コンピュータユニット（３
）ではシグナルジェネレータ（８）で内燃機関の回転角
を検出しているので、各気筒において正常に燃焼したか
否かイオン電流検出信号（１９）により知ることが出来
る。V+=Vo+ (V,, -VJ ・Rz/ (R++R
a) Next, the operation of the ignition system for an internal combustion engine including the conventional ion current detection device shown in Section 2 (!I) will be explained.
A signal generated by the computer unit (3) at the ignition timing causes the power transistor (2) to control the ignition coil (1).
), at this time a negative high voltage ((20) is generated in the ignition coil (1), which is supplied to the spark plug (5) via the diode (4) and is applied to the engine combustion chamber (6). ) is ignited.At this time, since the high voltage (20) is negative, the ion current detection unit (9)
When ions are generated in the engine combustion chamber (6) during combustion, the ion current passes through the ion current path (17) to the ion current detection unit because the DC power supply (14) is biased to a negative voltage. (9), and a voltage is generated across the resistor (15). This voltage is measured by the comparator (
11) and is compared with the reference voltage V1. When the voltage generated in the resistor (15), that is, the voltage v2 at the connection point A, becomes V2>Vl, the comparator (11)
A signal is outputted from the ionic current detection signal, processed by the detection signal processing section (10), and transmitted to the computer unit (3) as an ion current detection signal (19). Computer unit (3
), since the rotation angle of the internal combustion engine is detected by the signal generator (8), it is possible to know from the ion current detection signal (19) whether or not combustion occurred normally in each cylinder.
［発明が解決しようとする課題］
従来のイオン電流検出装置は以上のように構成されてい
るので、長時間の運転によりイオン電流検出用電極（１
８）にカーボン等が付着すると、常時員のバイアス電圧
がかかるため僅かな直流リーク電流が直流電源（１４）
から電極（１８）に対して流れる。これにより抵抗器（
１５）の両端に常時電圧が発生するため常にＶ ＊ ＞
Ｖ ＋となり、比較器（１１）はイオン電流の有無と
関係無く信号を出す誤動作を生じ、信頼性が悪化すると
いう問題点があった。[Problems to be Solved by the Invention] Since the conventional ion current detection device is configured as described above, the ion current detection electrode (one
If carbon etc. adheres to the DC power supply (14), a slight DC leakage current will be generated due to the constant bias voltage applied to the DC power supply (14).
to the electrode (18). This allows the resistor (
15) Since a voltage is always generated across the terminal, V * >
V + , and the comparator (11) malfunctions to output a signal regardless of the presence or absence of ion current, resulting in a problem that reliability deteriorates.
この発明は上記のような問題点を解決するためになされ
たもので、カーボン付着等の点火プラグ汚損時にも信頼
度の高いイオン電流検出信号を出力するイオン電流検出
装置を得ることを目的とする。This invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain an ion current detection device that outputs a highly reliable ion current detection signal even when the spark plug is contaminated with carbon adhesion or the like. .
［課題を解決するための手段Ｊ
この発明に係るイオン電流検出装置は、イオン電流検出
用電極にバイアス電圧を供給する電源と。[Means for Solving the Problems J] An ion current detection device according to the present invention includes a power source that supplies a bias voltage to an electrode for detecting ion current.
上記電極と上記電源との間に設けられ、イオン電流を電
圧信号に変換する変換手段と、該変換手段に接続され、
変換出力より交流成分を抽出する交流結合手段と、該交
流結合手段に接続され、その出力と基準値を比較してイ
オン電流検出信号を得る信号処理手段とを備えたもので
ある。a conversion means provided between the electrode and the power source and converting the ionic current into a voltage signal, and connected to the conversion means,
The device includes an AC coupling means for extracting an AC component from the converted output, and a signal processing means connected to the AC coupling means and comparing the output with a reference value to obtain an ion current detection signal.
［作用］
この発明においては、交流結合手段によりイオン電流検
出用電極の汚損に基ずく直流リーク電流を阻止し、イオ
ン電流に関連した交流成分のみを抽出して次段の信号処
理手段に伝達する。[Function] In the present invention, the AC coupling means blocks the DC leakage current due to contamination of the ionic current detection electrode, extracts only the AC component related to the ionic current, and transmits it to the next stage signal processing means. .
［実施例］
以下、この発明の一実施例を例えば内燃機関用点火装置
に適用した場合を例に取り図について説明する。第１図
はこの発明の一実施例を示す楕威図であり、（１）〜（
２０）は前述と同様のものである０本実施例では接続点
Ａと比較器（１１）の一方の入力端との間にコンデンサ
（２１）を接続し、接続点Ｃと大地との間に抵抗器（２
２）を接続する。コンデンサ（２１）と抵抗器（２２）
とは交流結合手段を構成し、これにより抵抗器（１５）
の両端に発生する交流成分のみ比較器（１２）に伝達し
、直流成分やイオン電流信号と関係ない低周波数の電圧
成分は除去される。[Embodiment] Hereinafter, drawings will be described taking as an example a case in which an embodiment of the present invention is applied to, for example, an ignition device for an internal combustion engine. FIG. 1 is an ellipse diagram showing one embodiment of the present invention, (1) to (
20) is the same as described above. In this embodiment, a capacitor (21) is connected between the connection point A and one input terminal of the comparator (11), and a capacitor (21) is connected between the connection point C and the ground. Resistor (2
2) Connect. Capacitor (21) and resistor (22)
constitutes an AC coupling means, thereby connecting the resistor (15)
Only the alternating current component generated at both ends of the ion current signal is transmitted to the comparator (12), and the low frequency voltage component unrelated to the direct current component and the ion current signal is removed.
次に、第１図に示したこの発明の一実施例の動作につい
て説明する０点火時期にコンピュータユニット（３）よ
り発生された信号によりパワートランジスタ（２）は点
火コイル（１）を駆動するスイッチとして働く、このと
き点火コイル（１）には負の高電圧（２０）が発生し、
ダイオード（４）を介して点火プラグ（５）に供給され
てエンジン燃焼室（６）内の混合気に着火される。この
とき高電圧（２０）は負であるのでイオン電流検出ユニ
ット（９）に影響は与えない、燃焼時にエンジン燃焼室
（６）内でイオンが発生すると、直流電源（１４）にて
負電圧にバイアスしているのでイオン電流径路（１７）
を通してイオン電流がイオン電流検出ユニット（９）に
流れ、抵抗器（１５）の両端に電圧が生じる。この電圧
はコンデンサ（２１）及び抵抗器（２２）からなる交流
結合手段を介して比較器（１１）の一方の入力端に供給
され、基準電圧Ｖ、と比較される。そして抵抗器（１５
）に発生した電圧即ち接続点Ａの電圧Ｖ、がＶ ｚ ＞
Ｖ 、になると、比較器（１１）より信号が出力され
、検出信号処理部（１０）で処理されてイオン電流検出
信号（１９）としてコンピュータユニット（３）に伝送
される。コンピュータユニット（３）ではシグナルジェ
ネレータ（８）で内燃機関の回転角を検出しているので
、各気筒において正常に燃焼したか否かイオン電流検出
信号（１９）により知ることが出来る。このときイオン
電流検出用電極（１８）のカーボン付着等により直流電
源（１４）より電極（１８）へ直流リーク電流が流れて
抵抗器（１５）の両端に電圧が発生しても、この電圧成
分はコンデンサ（２１）で阻止され、比較器（１１）に
供給される事はないので、比較器（１１）が誤動作する
ことがない。Next, we will explain the operation of one embodiment of the present invention shown in FIG. At this time, a negative high voltage (20) is generated in the ignition coil (1),
It is supplied to the spark plug (5) via the diode (4) and ignites the air-fuel mixture in the engine combustion chamber (6). At this time, the high voltage (20) is negative, so it does not affect the ion current detection unit (9).When ions are generated in the engine combustion chamber (6) during combustion, the DC power supply (14) sets the voltage to negative. Since it is biased, the ion current path (17)
The ionic current flows through the ionic current detection unit (9) and a voltage is generated across the resistor (15). This voltage is supplied to one input end of the comparator (11) via an AC coupling means consisting of a capacitor (21) and a resistor (22), and is compared with a reference voltage V. and a resistor (15
), that is, the voltage V at the connection point A, is V z >
When the ion current detection signal (19) is reached, a signal is output from the comparator (11), processed by the detection signal processing section (10), and transmitted to the computer unit (3) as an ion current detection signal (19). Since the computer unit (3) detects the rotation angle of the internal combustion engine using the signal generator (8), it is possible to know from the ion current detection signal (19) whether or not combustion has occurred normally in each cylinder. At this time, even if a DC leak current flows from the DC power supply (14) to the electrode (18) due to carbon adhesion on the ion current detection electrode (18) and a voltage is generated across the resistor (15), this voltage component is blocked by the capacitor (21) and is not supplied to the comparator (11), so the comparator (11) will not malfunction.
［発明の効果］
以上のようにこの発明によれば、イオン電流検出用電極
にバイアス電圧を供給する電源と、上記電極と上記電源
との間に設けられ、イオン電流を電圧信号に変換する変
換手段と、該変換手段に接続され、変換出力より交流成
分を抽出する交流結合手段と、該交流結合手段に接続さ
れ、その出力と基準値を比較してイオン電流検出信号を
得る信号処理手段とを備えたので、カーボン付着等の点
火プラグ（イオン電流検出用電極）汚損時にも信頼度の
高いイオン電流検出信号を出力できるイオン電流検出装
置が得られる効果がある。[Effects of the Invention] As described above, according to the present invention, there is a power source that supplies a bias voltage to an electrode for detecting ion current, and a converter that is provided between the electrode and the power source and converts the ion current into a voltage signal. means, an AC coupling means connected to the conversion means and extracting an AC component from the converted output, and a signal processing means connected to the AC coupling means and comparing the output with a reference value to obtain an ionic current detection signal. This has the effect of providing an ion current detection device that can output a highly reliable ion current detection signal even when the spark plug (ion current detection electrode) is contaminated with carbon adhesion or the like.
第１図はこの発明の一実施例を示す構成図、第２図は従
来のイオン電流検出装置を含む内燃機関用点火装置を示
す構成図である。
図において、（９）はイオン電流検出ユニット、（１０
）は検出信号処理部、（１１）は比較器、（１４）は直
流電源、（１５）、（２２）は抵抗器、（２１）はコン
デンサである。
尚、図中、同一符号は同−又は相当部分を示す。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an ignition device for an internal combustion engine including a conventional ion current detection device. In the figure, (9) is an ion current detection unit, (10
) is a detection signal processing section, (11) is a comparator, (14) is a DC power supply, (15) and (22) are resistors, and (21) is a capacitor. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
、 上記電極と上記電源との間に設けられ、イオン電流を電
圧信号に変換する変換手段と、 該変換手段に接続され、変換出力より交流成分を抽出す
る交流結合手段と、 該交流結合手段に接続され、その出力と基準値を比較し
てイオン電流検出信号を得る信号処理手段と を備えたことを特徴とするイオン電流検出装置。[Scope of Claims] A power supply that supplies a bias voltage to an electrode for detecting ion current; a conversion means provided between the electrode and the power supply for converting the ion current into a voltage signal; and a conversion means connected to the conversion means. , an ionizer comprising: an AC coupling means for extracting an AC component from a converted output; and a signal processing means connected to the AC coupling means and comparing the output with a reference value to obtain an ion current detection signal. Current detection device.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2272109A JPH04148077A (en) | 1990-10-12 | 1990-10-12 | Ion current detecting device |
| KR1019910017646A KR950002637B1 (en) | 1990-10-12 | 1991-10-08 | Ion current sensing device |
| US07/774,233 US5180984A (en) | 1990-10-12 | 1991-10-10 | Ion current sensing device for an internal combustion engine with spurious voltage preventing filter |
| DE4133743A DE4133743C2 (en) | 1990-10-12 | 1991-10-11 | Ignition device for an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2272109A JPH04148077A (en) | 1990-10-12 | 1990-10-12 | Ion current detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04148077A true JPH04148077A (en) | 1992-05-21 |
Family
ID=17509209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2272109A Pending JPH04148077A (en) | 1990-10-12 | 1990-10-12 | Ion current detecting device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5180984A (en) |
| JP (1) | JPH04148077A (en) |
| KR (1) | KR950002637B1 (en) |
| DE (1) | DE4133743C2 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4114087A1 (en) * | 1991-04-30 | 1992-11-05 | Vogt Electronic Ag | IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES |
| JP2536353B2 (en) * | 1991-10-04 | 1996-09-18 | 三菱電機株式会社 | Ion current detection device for internal combustion engine |
| US5241937A (en) * | 1991-12-09 | 1993-09-07 | Honda Giken Kogyo Kabushiki Kaisha | Misfire-detecting system for internal combustion engines |
| JP2951780B2 (en) * | 1991-12-09 | 1999-09-20 | 三菱電機株式会社 | Internal combustion engine combustion detection device |
| US5287836A (en) * | 1991-12-18 | 1994-02-22 | Honda Giken Kogyo Kabushiki Kaisha | Control system for internal combustion engines |
| KR970006966B1 (en) * | 1992-06-05 | 1997-05-01 | 미쓰비시덴키 가부시키가이샤 | Ignition for internal combustion engine |
| JP3150429B2 (en) * | 1992-07-21 | 2001-03-26 | ダイハツ工業株式会社 | Lean limit detection method using ion current |
| US5483818A (en) * | 1993-04-05 | 1996-01-16 | Ford Motor Company | Method and apparatus for detecting ionic current in the ignition system of an internal combustion engine |
| US5321978A (en) * | 1993-04-05 | 1994-06-21 | Ford Motor Company | Method and apparatus for detecting cylinder misfire in an internal combustion engine |
| US5734094A (en) * | 1993-05-31 | 1998-03-31 | Ngk Spark Plug Co., Ltd. | Ion current detector device for use in an internal combustion engine |
| JP3192541B2 (en) * | 1994-01-28 | 2001-07-30 | 三菱電機株式会社 | Misfire detection circuit for internal combustion engine |
| US5534781A (en) * | 1994-08-15 | 1996-07-09 | Chrysler Corporation | Combustion detection via ionization current sensing for a "coil-on-plug" ignition system |
| US6104195A (en) * | 1995-05-10 | 2000-08-15 | Denso Corporation | Apparatus for detecting a condition of burning in an internal combustion engine |
| DE19727004A1 (en) * | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Combustion failure recognition method for IC engines |
| JP3475732B2 (en) * | 1997-07-30 | 2003-12-08 | トヨタ自動車株式会社 | Device for detecting combustion state of internal combustion engine |
| FR2779183B1 (en) * | 1998-05-29 | 2000-07-21 | Renault | ENGINE CONTROL METHOD ACCORDING TO FOULING OF SPARK PLUGS AND IMPLEMENTING DEVICE |
| US6186129B1 (en) * | 1999-08-02 | 2001-02-13 | Delphi Technologies, Inc. | Ion sense biasing circuit |
| DE19963225B4 (en) * | 1999-12-27 | 2011-06-30 | Volkswagen AG, 38440 | Method for monitoring the combustion process in a diesel engine and corresponding measuring system |
| US6600322B1 (en) * | 2000-03-06 | 2003-07-29 | Murphy Power Ignition | Stroke distinction in 4-cycle engines without a cam reference |
| DE10028884A1 (en) * | 2000-06-10 | 2001-12-13 | Volkswagen Ag | Combustion monitoring system for vehicle diesel engines uses ion current correction model corrects for contamination |
| JP3894442B2 (en) * | 2003-05-14 | 2007-03-22 | 三菱電機株式会社 | Internal combustion engine control device |
| JP2009523960A (en) * | 2006-01-24 | 2009-06-25 | エルドル・コルポラティオン・エス．ピー．エ−． | Method and apparatus equipped with a high-pass filter for evaluating knocking of all cylinders of an internal combustion engine |
| CN101689752A (en) * | 2007-05-02 | 2010-03-31 | 霍尼韦尔国际公司 | igniter |
| CN102592938B (en) * | 2012-01-06 | 2016-03-30 | 同方威视技术股份有限公司 | Transference tube signal extracting circuit, method and ion migration detector |
| WO2014097914A1 (en) * | 2012-12-19 | 2014-06-26 | 新電元工業株式会社 | Ignition control device and ignition control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942102A (en) * | 1973-05-25 | 1976-03-02 | Siemens Aktiengesellschaft | Spark ignited combustion engine analyzer |
| US4515132A (en) * | 1983-12-22 | 1985-05-07 | Ford Motor Company | Ionization probe interface circuit with high bias voltage source |
| AT386256B (en) * | 1984-07-02 | 1988-07-25 | Atlas Fahrzeugtechnik Gmbh | ARRANGEMENT FOR GENERATING A TRIGGER PULSE FOR THE IGNITION OF AN INTERNAL COMBUSTION ENGINE |
| SE442345B (en) * | 1984-12-19 | 1985-12-16 | Saab Scania Ab | PROCEDURE FOR DETECTING IONIZATION CURRENT IN A TURN CIRCUIT INCLUDING IN A COMBUSTION ENGINE IGNITION ARM AND ARRANGEMENTS FOR DETECTING IONIZATION CURRENT IN A COMBUSTION ENGINE TENDING SYSTEM |
| JPH04143463A (en) * | 1990-10-04 | 1992-05-18 | Mitsubishi Electric Corp | Ignition device for internal combustion engine |
-
1990
- 1990-10-12 JP JP2272109A patent/JPH04148077A/en active Pending
-
1991
- 1991-10-08 KR KR1019910017646A patent/KR950002637B1/en not_active IP Right Cessation
- 1991-10-10 US US07/774,233 patent/US5180984A/en not_active Expired - Lifetime
- 1991-10-11 DE DE4133743A patent/DE4133743C2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5180984A (en) | 1993-01-19 |
| KR950002637B1 (en) | 1995-03-23 |
| DE4133743A1 (en) | 1992-04-30 |
| DE4133743C2 (en) | 1995-04-27 |
| KR920008497A (en) | 1992-05-28 |
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